Home / 13,087.97-18,056.49-7,707.11

Finding the Fourth Proportional to 13,087.97, 18,056.49 and 7,707.11

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Solution

The fourth proportional to 13,087.97, 18,056.49 and 7,707.11 is: 10,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.97 : 18,056.49 = 7,707.11 : x
  2. Step 2: Convert to fraction form
    13,087.97/18,056.49 = 7,707.11/x
  3. Step 3: Cross multiply
    13,087.97x = 18,056.49 × 7,707.11
  4. Step 4: Simplify right side
    13,087.97x = 139,163,354.64
  5. Step 5: Solve for x
    x = 139,163,354.64/13,087.97
  6. Step 6: Final answer
    x = 10,632.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.